Anyone try this eBay find? $190 Painted MPerformance style diffuser

AustinGelbM4 · 05-18-2017, 08:53 AM

Quote:

Originally Posted by iatacs19

Looks great! How is it holding up so far?

It's holding up perfectly. No fading, no paint peeling, no paint cracking, no warping, nothing. I'm still 100% satisfied.

BoxKing · 05-18-2017, 11:38 AM

Quote:

Originally Posted by Bahn360Photo

i got CF akra style diffuser and its a great looking piece for $160

wanted something different then M perf

Link to where you purchased?!

Bahn360Photo · 05-18-2017, 12:23 PM

Quote:

Originally Posted by BoxKing

Quote:

Originally Posted by Bahn360Photo

i got CF akra style diffuser and its a great looking piece for $160

wanted something different then M perf

Link to where you purchased?!

I'll check, search on eBay: bmw m4 diffuser, it was on the first page of search results

Brasko · 05-19-2017, 08:17 AM

Picked up my rear diffuser, painted in Laguna Seca Blue from that same Ebay seller. Good item, great fit and fast turn-around.

skyline408 · 05-25-2017, 02:59 PM

Quote:

Originally Posted by Bahn360Photo

I'll check, search on eBay: bmw m4 diffuser, it was on the first page of search results

Is this the one you got?

Looking for an akra style one too..

http://www.ebay.com/itm/FOR-2015-201...tWKG8W&vxp=mtr

Bahn360Photo · 05-25-2017, 03:26 PM

Quote:

Originally Posted by skyline408

Quote:

Originally Posted by Bahn360Photo

I'll check, search on eBay: bmw m4 diffuser, it was on the first page of search results

Is this the one you got?

Looking for an akra style one too..

http://www.ebay.com/itm/FOR-2015-201...tWKG8W&vxp=mtr

Yeah

gatorfast · 05-30-2017, 12:37 PM

Just ordered the one from AustinGelbM4's post. Hoping the fit and finish is ok.

ksa · 06-03-2017, 01:02 PM

Anyone try the gloss black diffuser and spoiler combination? Wonder how that looks.

I wouldn't mind a gloss black diffuser but worried that the spoiler may not look good then the option would be leaving it stock YMB or then get both items in carbon fibre.

Pictures?

paffinity · 06-12-2017, 10:46 PM

Quote:

Originally Posted by AustinGelbM4

Yes, all the holes lined up perfectly. Didn't realize the 2 middle ones weren't needed until after I removed the stock diffuser and saw no holes there.

Is your diffuser flappy at all? I actually ordered the one you linked and it seems pretty flimsy since it doesn't use the 2 middle bolts to mount it. I can't really see if it's stable or not since I'm driving it...

gatorfast · 06-13-2017, 06:40 AM

Quote:

Originally Posted by paffinity

Is your diffuser flappy at all? I actually ordered the one you linked and it seems pretty flimsy since it doesn't use the 2 middle bolts to mount it. I can't really see if it's stable or not since I'm driving it...

I was actually wondering the same thing. I installed mine last week and had the same thought process as I was putting it on "huh I wonder if it will flap around at highway speeds". One idea I had was to perhaps poke two small holes in the diffuser and zip tie it to the oem mount points. Not sure if its necessary though.

TypeOne · 06-13-2017, 02:53 PM

Can you guys post some pics of what it looks like under there?

AustinGelbM4 · 06-14-2017, 07:47 AM

Quote:

Originally Posted by paffinity

Is your diffuser flappy at all? I actually ordered the one you linked and it seems pretty flimsy since it doesn't use the 2 middle bolts to mount it. I can't really see if it's stable or not since I'm driving it...

The stock diffuser doesn't use those 2 middle bolts either but has 2 tabs. I slotted the aftermarket tabs into the slots under the car and the fit is as tight as a drum. I'll try to see if I can take some pics of under there.

gatorfast · 06-14-2017, 09:11 AM

Quote:

Originally Posted by AustinGelbM4

The stock diffuser doesn't use those 2 middle bolts either but has 2 tabs. I slotted the aftermarket tabs into the slots under the car and the fit is as tight as a drum. I'll try to see if I can take some pics of under there.

I think what paffinity was saying is that his diffuser does not have the extended plastic pieces which would fit into the oem tab locations, thus there is nothing holding the middle section of the diffuser to the vehicle. Mine is the same.

paffinity · 06-14-2017, 02:06 PM

Quote:

Originally Posted by gatorfast

Quote:

Originally Posted by AustinGelbM4

The stock diffuser doesn't use those 2 middle bolts either but has 2 tabs. I slotted the aftermarket tabs into the slots under the car and the fit is as tight as a drum. I'll try to see if I can take some pics of under there.

I think what paffinity was saying is that his diffuser does not have the extended plastic pieces which would fit into the oem tab locations, thus there is nothing holding the middle section of the diffuser to the vehicle. Mine is the same.

Yes exactly. I'm thinking of getting some hard plastic and gluing it on and bolting that.

TypeOne · 06-14-2017, 03:51 PM

Quote:

Originally Posted by AustinGelbM4

The stock diffuser doesn't use those 2 middle bolts either but has 2 tabs. I slotted the aftermarket tabs into the slots under the car and the fit is as tight as a drum. I'll try to see if I can take some pics of under there.

You're a star! Thanks!

AustinGelbM4 · 06-14-2017, 10:47 PM

Ok guys. Correction. I looked under car and remembered what how it went. I undid the four bolts under rear not realizing that the 2 middle bolts didn't need to be pulled as they did not hold the OEM diffuser. The gloss black plastic eBay diffuser came with four holes (including holes for the middle tabs. see pic even though hard to see middle tabs have holes). I installed the diffuser and realized that the eBay diffuser holes lined up perfectly. So I slid the eBay diffuser holed tabs above the zinc looking

piece and re-installed the 2 middle bolts. When I looked at it today it seems the cheap eBay diffuser is actually better than OEM based on this.

BTW. I didn't bend or adjust the middle tabs, drilled any holes or anything. All I used for the entire install was a 10 socket I think it was. I think its clearly meant to be installed as it was. It fits perfectly and tight and solid like a drum. Hope this helps. Cheers

gatorfast · 06-15-2017, 06:36 AM

Interesting. I bought the same diffuser from the link you listed and mine did NOT have those middle extensions for the bolts. Oh well, dont think it really makes a difference.

paffinity · 06-15-2017, 09:00 AM

Quote:

Originally Posted by gatorfast

Interesting. I bought the same diffuser from the link you listed and mine did NOT have those middle extensions for the bolts. Oh well, dont think it really makes a difference.

Same, it's just straight through the middle without any protrusions.

rosenbergendo · 06-15-2017, 09:24 AM

@AustinGelbM4 do they make this version in carbon?

AustinGelbM4 · 06-15-2017, 09:52 AM

Quote:

Originally Posted by gatorfast

Interesting. I bought the same diffuser from the link you listed and mine did NOT have those middle extensions for the bolts. Oh well, dont think it really makes a difference.

Strange that the same seller has more than one mold. eBay is really hit or miss. The diffuser was a hit but a carbon fiber spoiler I ordered was definitely a miss.

Sorry it didn't work out as well for you guys.

AustinGelbM4 · 06-15-2017, 09:53 AM

Quote:

Originally Posted by rosenbergendo

@AustinGelbM4 do they make this version in carbon?

I don't know. I just searched and found what I wanted.

iatacs19 · 06-17-2017, 01:21 PM

Quote:

Originally Posted by gatorfast

Interesting. I bought the same diffuser from the link you listed and mine did NOT have those middle extensions for the bolts. Oh well, dont think it really makes a difference.

Same, mine was missing the tabs in the middle as well. Seems to be ok though. I installed it in about 10min and never paid any attention to it since.

I guess I could use some 3M double sided tape to keep it from moving:

http://www.homedepot.com/p/3M-Scotch...C-SF/100575385

05-19-2017, 08:17 AM	#26
Brasko #LSBM3 1420 Rep 1,973 Posts Drives: 2016 BMW M3 Join Date: Feb 2015 Location: Oregon / Florida iTrader: (4) Garage List 1984 BMW R65 [0.00] 2020 Ford F-150 XLT ... [0.00] 2003 Mitsubishi Evo ... [0.00] 2016 M3 Competition ... [10.00]	Picked up my rear diffuser, painted in Laguna Seca Blue from that same Ebay seller. Good item, great fit and fast turn-around. __________________ /// M3
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05-30-2017, 12:37 PM	#29
gatorfast Major General 4995 Rep 6,862 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	Just ordered the one from AustinGelbM4's post. Hoping the fit and finish is ok.
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06-03-2017, 01:02 PM	#30
ksa Major 1070 Rep 1,393 Posts Drives: Aston Martin Vantage & others Join Date: Aug 2015 Location: Alberta/Canada iTrader: (3)	Anyone try the gloss black diffuser and spoiler combination? Wonder how that looks. I wouldn't mind a gloss black diffuser but worried that the spoiler may not look good then the option would be leaving it stock YMB or then get both items in carbon fibre. Pictures?
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06-13-2017, 02:53 PM	#33
TypeOne Enthuisiast 93 Rep 423 Posts Drives: G05 X5 Join Date: Oct 2013 Location: Baton Rouge iTrader: (0)	Can you guys post some pics of what it looks like under there? __________________ AW F80 M3 / RAYS / TOYO TIRES / BMS IG: @hybrid_david
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06-14-2017, 10:47 PM	#38
AustinGelbM4 Lieutenant 196 Rep 438 Posts Drives: Austin Yellow M4 Join Date: Feb 2008 Location: 30058 iTrader: (0)	Ok guys. Correction. I looked under car and remembered what how it went. I undid the four bolts under rear not realizing that the 2 middle bolts didn't need to be pulled as they did not hold the OEM diffuser. The gloss black plastic eBay diffuser came with four holes (including holes for the middle tabs. see pic even though hard to see middle tabs have holes). I installed the diffuser and realized that the eBay diffuser holes lined up perfectly. So I slid the eBay diffuser holed tabs above the zinc looking piece and re-installed the 2 middle bolts. When I looked at it today it seems the cheap eBay diffuser is actually better than OEM based on this. BTW. I didn't bend or adjust the middle tabs, drilled any holes or anything. All I used for the entire install was a 10 socket I think it was. I think its clearly meant to be installed as it was. It fits perfectly and tight and solid like a drum. Hope this helps. Cheers __________________ 2016 F82 M4 Austin Yellow \| DCT\| LED\| HUD\| CCB\| CF Roof\| Surround View Done:Gloss Black diffuser\| CP Exhaust Tips\| Black Front Grills\|Eibach Pro\|10mm\|666M
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06-15-2017, 06:36 AM	#39
gatorfast Major General 4995 Rep 6,862 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	Interesting. I bought the same diffuser from the link you listed and mine did NOT have those middle extensions for the bolts. Oh well, dont think it really makes a difference.
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06-15-2017, 09:24 AM	#41
rosenbergendo First Lieutenant 119 Rep 345 Posts Drives: 2016 Porsche GT3RS, F80 M3,997 Join Date: May 2012 Location: Jupiter,FL iTrader: (0)	@AustinGelbM4 do they make this version in carbon?
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